In what two ways can you make a magnetic field? 1) By using a permanent magnet. 2) By using an electric current. In what direction do magnetic field lines travel?

They are:

• Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.
• Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.
• Directive Property – A freely suspended magnet always points in a north-south direction.

The two ways to trace the magnetic field of a bar magnet is by a compass and by iron filings in the compass needle method, you need to let the needle rotate freely and trace it. In another way, you need to give the iron filings make the magnetic path foryou.

poles

There is never an isolated pole (a monopole). All magnets attract iron, such as that in a refrigerator door. However, magnets may attract or repel other magnets.

If a bar magnet is cut in half, it is not the case that one half has the north pole and the other half has the south pole. Instead, each piece has its own north and south poles. A magnetic monopole cannot be created from normal matter such as atoms and electrons, but would instead be a new elementary particle.

Artificial magnets can be created by doping iron, nickel, and/or cobalt with other elements. Doping with rare earth materials has been particularly successful, producing very strong magnets.

The crust of the Earth has some permanent magnetization, and the Earth’s core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a “magnet.”

Venus is a rarity among planets – a world that does not internally generate a magnetic field. Despite the absence of a large protective magnetosphere, the near-Venus environment does exhibit a number of similarities with planets such as Earth. However, Venus is partially protected by an induced magnetic field.

If Earth’s magnetic field disappeared, the entire human race – and all of life, in fact – would be in serious danger. Cosmic rays would bombard our bodies and could even damage our DNA, increasing worldwide risk of cancer and other illnesses.

The strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.

Two magnets together will be slightly less than twice as strong as one magnet. When magnets are stuck entirely together (the south pole of one magnet is connected to the north pole of the other magnet) you can add the magnetic fields together.

Summary: Prolonged exposure to low-level magnetic fields, similar to those emitted by such common household devices as blow dryers, electric blankets and razors, can damage brain cell DNA, according to researchers in the University of Washington’s Department of Bioengineering.

Any strong magnet will do.

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• Universal security tag remover magnet 15000GS detacher EAS beeper remover.
• 12000GS EAS Golf Tag Remover Super Magnet Detacher.
• Security tag remover EAS golf 12000GS detacher and key hook.
• Security tag detacher key hook remover for Sensormatic tags.

Although it may sound too simple to be true, yes, you can stop the alarm from going off by covering the tags with a conductive material. The aluminum foil bag example in the beginning works because of a concept called ‘electromagnetic shielding’.

Security tags require removal when a product is sold. This simple process occurs using a detacher device which is mounted or installed in the counter at the Point of Sale. Either a mechanical device or a high-powered magnet, the detacher releases the security tag’s locking mechanism and allows the tag to be removed.

Use scissors, a screwdriver, a high-powered magnet, a knife, or a pair of pliers. With a magnet, place it on the table and position the tag bottom side down on the magnet. You should hear it click. Manipulate the pin up and down, and it should come out.

Honestly, it’s just plastic, a small metal rod, and a powerful magnet. If you are careful not to damage the strap, you can break it open with a small hammer.

To remove them at home, use a high-powered magnet, such as a hard drive magnet. Place the magnet on a flat surface and lay the tag on top of it with the ink dome or cartridge facing down. You should hear a click letting you know the tag has deactivated. Wiggle the pins in the tag up and down to release them.

Wash the garment in hot water after treating the ink stain. Security ink is permanent, which makes it difficult to get out of clothes. According to the Iowa State County Extension Office, treat the stain immediately and blot it rather than rubbing, which will only spread the mess.

Security tags can be broadly broken down into three main categories: electronic article surveillance (EAS) tags, visual deterrent tags and benefit denial.

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A permanent magnet′s magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.

The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Unlike magnetic poles attract, so the north indicator of the compass will point toward the south pole of a magnet.

Answer. Because the magnetic field lines are a parallel and goes from South to North inside the bar magnet. And also the concentration of field lines is uniform inside the bar magnet and higher at the edges.

Iron

copper wire

If you have a strong enough magnetic field all matter is magnetic. But copper is so weakly magnetic that we can’t observe it without very, very large magnetic fields. So the short answer is “No, copper isn’t magnetic.” This can quickly be tested by trying to pick up a penny with a magnet.

If you drop strong magnets onto a plate of copper, something remarkable happens: the magnets will slow down before hitting the surface, appearing to levitate slightly, like the copper is another magnetic force pushing them away.